Bowers & Wilkins HTM81 D4 Center Channel Speaker - (Each)
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Bowers & Wilkins HTM81 D4 Center Channel Speaker - (Each)
Overview
In a home theatre, most of the dialogue comes from the centre channel, so it needs to match the quality of the left and right speakers beside it.
The Bowers & Wilkins HTM81 D4 is a 3-way vented-box centre-channel speaker and the largest in the 800 Series Diamond range. It combines a 25mm Diamond dome tweeter in a Solid Body Tweeter-on-Top housing, a 150mm Continuum cone FST midrange and two 200mm Aerofoil cone bass units mounted in twin solid aluminium bass pods.
Bowers & Wilkins designed it to partner the 801 D4 and 802 D4. Frequency response is 28Hz to 28kHz (±3dB) with 90dB sensitivity and an 8Ω nominal impedance (3.0Ω minimum), and the recommended amplifier power is 50W to 500W into 8Ω.
Simcoe Audio Video Insight
At 847mm wide and 32.20kg, the HTM81 D4 is a substantial centre speaker, and stands are not included. Bowers & Wilkins makes a dedicated stand for it, and we can talk through placement relative to your screen and the rest of the speakers in the system.
More Info
Why the Bowers & Wilkins HTM81 D4 Stands Out
Diamond Dome Tweeter
Bowers & Wilkins describes it as the combination of low mass, exceptional stiffness and outstanding accuracy, and says that 15 years after introducing it, it has not found a better tweeter dome technology.
Decoupled Continuum Cone Midrange
A 150mm (6 in) Continuum cone FST midrange handles the voices and detail that matter most in a centre channel.
Aerofoil Bass Cones
Bowers & Wilkins says the carbon-fibre skin and variable-profile foam core combine low mass and high stiffness, and the foam Anti-Resonance Plug adds lower distortion and cleaner bass.
Aluminium Bass Pods
Two Aerofoil bass cones are mounted in twin solid aluminium bass pods, each clamped into an aluminium plate fixed to the stiffest part of the curved cabinet.
Made for the 801 D4 and 802 D4
Bowers & Wilkins says it has the scale and midrange extension to match its larger stablemates.
Amplifier Flexibility
Rated at 90dB sensitivity with a recommended 50W to 500W into 8Ω.
Buyer's Guide
Who It's For
- The Flagship Home Theatre Builder: is pairing a centre speaker with the 801 D4 or 802 D4 floorstanders.
- The Dialogue-Focused Viewer: wants a centre channel with a dedicated midrange cone.
- The Large-Room Owner: has the space for a centre speaker 847mm wide and 32.20kg.
How It Compares
The HTM82 D4 is a smaller 3-way centre speaker with a 130mm Continuum cone FST midrange and two 165mm Aerofoil bass units, measuring 715mm wide and recommended for 50W to 200W. Bowers & Wilkins positions it for systems based on the 803 D4 or 804 D4, while the HTM81 D4 partners the 801 D4 and 802 D4.
Bowers & Wilkins HTM81 D4 Center Channel Speaker - (Each) Specifications
| General Information | |
|---|---|
| Model | Bowers & Wilkins HTM81 D4 |
| Brand | Bowers & Wilkins |
| Series | 800 Series Diamond |
| Type | 3-way vented-box center channel loudspeaker (each) |
| Stand | Not included |
| Drive Units | |
| High Frequency | 1 x 25mm (1 in) Diamond dome, Solid Body Tweeter-on-Top |
| Midrange | 1 x 150mm (6 in) Continuum cone FST |
| Bass | 2 x 200mm (8 in) Aerofoil cone |
| Technologies | Matrix, Anti-Resonance Plug, Biomimetic Suspension, Flowport |
| Performance | |
| Frequency Response | 28Hz - 28kHz (±3dB from reference axis) |
| Frequency Range | 20Hz - 35kHz |
| Sensitivity | 90dB (2.83Vrms, 1m) |
| Harmonic Distortion | <1% 80Hz - 20kHz; <0.3% 100Hz - 20kHz (2nd and 3rd harmonics, 90dB, 1m on axis) |
| Nominal Impedance | 8 ohms (minimum 3.0 ohms) |
| Recommended Amplifier Power | 50W - 500W into 8 ohms, unclipped programme |
| Max Recommended Cable Impedance | 0.1 ohms |
| Dimensions & Weight | |
| Height | 334mm (13.1 in) |
| Width | 847mm (33.3 in) |
| Depth | 371mm (14.6 in) |
| Net Weight | 32.20kg (71 lb) |
| Colours Available | Gloss Black, White (grille: Black or Grey) |
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